baber/WOPTO huggingface dataset:
Patent GB-1235275-A (GB)
Title: Method and apparatus for welding together elemets having a thermoplastics surface
Inventor: BOONSTOPPEL MAURITS
IPC: B29C65/48
Filed: 1969-03-17
Abstract: 1,235,275. Seaming non-metallic sheet material. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 17 March, 1969, No. 13765/69. Heading B5K. Elements 30 are welded together to form an endless closed-path seam in surfaces of the elements, the surfaces being formed of thermoplastic material, by forming the seam in at least two portions, which overlap each other, between welding members of which one is positioned inside the closed path of the seam being formed. The seam may be circular, polygonal or square with rounded edges. A shown, the elements 30 comprise an open U-shaped rim 32, 33 on a disc-shaped element 31 and a circular section element 34. The welding apparatus comprises an inner welding member 11 and six outer welding segments 12 ... 17. The radius of curvature of the face 25 of each segment is less than that of the outer surface of the element 32 prior to welding but greater than that of the formed welded seam. The faces 25 are provided with rounded edges 26 to prevent cutting the seam. Each segment spans an arc of 65-85 degrees, preferably 74 degrees, and is movable towards and away from the member 11 by a pneumatic cylinder 21. The member 11 is connected to a high frequency generator and the segments 12 ... 17 are earthed. Preferably, the member 11 and the segments 12...17 are composed of yellow brass. In operation, the member 11 is positioned inside and against the element 33 and the segments 12, 14, 16 are moved in synchronism towards and pressed against the element 32 to form the first portion of the seam. The segments 12, 14, 16 are retracted and the segments 13, 15, 17 are moved in synchronism towards and pressed against the element 32 to form the second portion of the seam.  The invention is applicable to closing both ends of a packaging container and to welding together coaxial parts of pipes.
Patent GB-712048-A (GB)
Title: Sugar cane wax
IPC: C11B11/00
Filed: 1951-06-11
Abstract: Refined sugar cane wax is obtained from the crude wax by heating it with an hydroxylic solvent and a material acting as an absorbent for odoriferous and coloured impurities and as a filter aid, decanting or filtering the hot extract, and crystallizing the wax from the filtrate.  The hot solvents dissolve the wax and a soft fatty fraction but leave a resinous fraction undissolved which is separated with the absorbents.  The wax is then separated from the soft fatty fraction in the crystallizing step. Alternatively, the solvents may first be used at room temperatures to dissolve out the soft fatty fraction and then repeated at elevated temperatures as before, the extract obtained containing only the purified wax which may be recovered by crystallization.  The solvents specified comprise ethyl, propyl, isopropyl, butyl, isobutyl, and the amyl alcohols and also fusel oil.  The absorbents may comprise bentonite, Fuller's earth, diatomaceous earth, activated carbon, fine bagasse, powdered bauxite, and powdered alumina or mixtures thereof.  Numerous examples are given with full details of working.  Refined wax of hard texture and pale colour, free from soft fatty and dark resinous substances is obtained.
Patent GB-566466-A (GB)
Title: Electrical indicating or telemetering system
IPC: G08C19/42
Filed: 1943-08-25
Abstract: 566,466. Electric control systems. SIMMONDS DEVELOPMENT CORPORATION, Ltd. (Liquidometer Corporation). Aug. 25, 1943, No. 13850. [Class 40 (i)] In a selsyn system in which the movement of sliding contacts 14, 15 over a resistance 10 at the transmitter varies the current distribution in the stator coils 20, 21, 22 at the receiver, one or more of the coils are shunted by resistances 50, 51, 52, Fig. 1, or one or more of the interconnecting wires include series resistances 60, 61, 62, Fig. 3. Such resistances serve to control the range of movement of the rotor 25 and are manually adjustable. As shown, the contacts 14, 15 are operated by a float in accordance with the level of liquid in a tank. If E, F represent the positions of the contacts when the tank is empty and full respectively, adjustment of the resistance 50, Fig. 1, or 60, Fig. 3, will shift the end positions of the rotor 25 without affecting its centre position. On the other hand, each of the resistances 51, 42, Fig. 1, or 61, 62, Fig. 3, serves to shift the centre position and one end position. The resistances are preferably located near the receiver.
Patent GB-163211-A (GB)
Title: Improvements in or relating to knee-grips for motor cycles or like vehicles
IPC: B62J25/00
Filed: 1920-05-19
Abstract: 163,211. Burton, J. C., and Barrett, A. G. May 19, 1920. Knee grips for motor-cycles.-A knee grip secured by a strap g consists of a cup or shell of india-rubber having a flange b which bears against the tank &c. and secures a stiffening- member d. An annular projection e on the inside bears against the stiffening-member d and prevents collapse of the grip.
Patent GB-560315-A (GB)
Title: Improvements in or relating to cartridge cases
IPC: F42B5/307
Filed: 1941-10-28
Abstract: 560,315. Moulding cartridge cases. DICKSON, W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 28, 1941, Nos. 13865/41 and 16973/42. [Class 87 (ii)] [Also in Group XXI] In a cartridge case moulded from a plastic substance, the ratio of the maximum thickness of the annular wall of the case to the thickness of the head portion lies between 4 : 5 and 4 : 16, and a strengthening annular reinforcing member 6 is secured to the head portion of the interior of the case. The case 3 may be moulded from plasticized cellulose acetate. The member 6 may be of the same material as the case or of different material ; it may be of thermosetting material, paper, vulcanized fibre or paper impregnated with synthetic resin. The member 6 may be completely or partly preformed and may be secured in position during or after moulding of the case. Thus, a coiled strip of paper is inserted into the case and heavily compressed into shape. The case may be injection moulded around a preformed member positioned on the end of the core of the mould. The member may be keyed in position in the moulded case by means of a projection or projections formed on the member or on the interior of the case or on both, as by recessing the member or the core. The member may be secured in position in the case by adhesive or pressure or both. Where the contacting surface of the case and/or member is amenable to solvent actions, the necessary.adhesion may be obtained by moistening with solvent and pressing into position. The member may be compression-moulded in situ from moulding powder, the case being supported by a mould.
Patent GB-168132-A (GB)
Title: Improvements in or relating to pressure and vacuum gauges for fluids, and to the manufacture of the same
IPC: G01L7/04
Filed: 1920-05-20
Abstract: 168,132. Moon, S. H., and Moon, H. H. May 20, 1920. Bourdon pressure gauges.-The quadrant 6 and pinion 5 of the gauge are supported by an integral carrier or bearing member 3, preferably made by stamping from an L-shaped blank, as shown in Fig. 3. Parts 1, 2 of the blank are doubled over to provide one set of bearings, the other bearings comprising perforations 7 in the base'3 of the blank. The bearings in the doubled-over portions may be formed in screwed, riveted or other collars 8. The member may be formed at the base with attachment lugs.
Patent GB-1470149-A (GB)
Title: Expandable styrene polymers
IPC: C08J9/16
Filed: 1975-04-04
Abstract: 1470149 Expandable styrene polymer beads HOECHST AG 4 April 1975 [8 April 1974] 13902/75 Heading C3C Expandable styrene polymer beads containing a blowing agent and 0À01-5% by wt. (based on the polymer) of octafluorocyclobutane are claimed. The expandable beads may be made by incorporating a blowing agent and the octafluorocyclobutane into the polymer or by polymerizing the styrene in aqueous suspension with the blowing agent and octafluorocyclobutane. In the examples styrene was polymerized in an aqueous suspension containing dibenzoyl peroxide, tert. butyl perbenzoate, polyvinyl pyrrolidone or tricalcium phosphate, n- and/or iso-pentane octafluorocyclobutane and optionally pentabromo-phenylallyl ether as flame retardant and the beads formed were prefoamed with steam, aged and then moulded with steam.
Patent GB-1383156-A (GB)
Title: Die-casting machines
IPC: B29C45/00
Filed: 1973-03-22
Abstract: 1383156 Die casting machines MASCHINENFABRIK UND GIESSEREI NETSTAL AG 22 March 1973 [22 March 1972] 13954/73 Heading B3F In a die casting machine having a movable mould support 3, the said support is moved between its open and closed positions by a first hydraulic device comprising pistons (5a) secured to the support and operating in cylinders (5) mounted in a yoke 1, and is locked in its closed position by a second hydraulic device comprising a piston 9 secured to the support 3 and operating in a cylinder 10, the cylinder 10 being provided with a ring 12 which is rotatable between a first position in which it can be moved axially into an opening in the yoke 1 and a second position in which it bears against the surface of the yoke to transmit the loading of the cylinder 10 thereto. The ring 12 is provided with cams 21 which bear against webs 23 on the yoke 1 when pressure fluid is applied to the space S within the cylinder 10 to lock the mould in its closed position. To open the mould the pressure in the space S is relieved and pressure fluid supplied to the cylinder space R to move the ring 12 away from the surface of the yoke 1. As soon as a small gap has opened up between the facing surfaces 25 and 24 of the cams 21 and webs 23 the ring 12 is rotated by a rotary piston cylinder 13 so that the cams 21 are moved out of alignment with the webs 23 and into alignment with recesses 22 in the walls of the opening in the yoke 1. The piston and cylinder units (5) are then actuated to open the mould, the piston 9 and cylinder 10 unit moving into the opening in the yoke 1 as the mould support 3 moves towards the yoke 1. Bolts 17 attached to the cylinder 10 and located in recesses in the support 3 prevent rotation of the cylinder but allow axial movement thereof. An hydraulic ejector device 14 may be provided within the piston 9.
Patent GB-791502-A (GB)
Title: Aluminium coating processes
IPC: C23C24/10
Filed: 1955-05-16
Abstract: A metal article is coated with Al or Al-base alloy by applying to the surface thereof a composition comprising 75-25 parts by weight of a powder of Al or Al-base alloy and 25-75 parts by weight of a fluxing agent comprising a metal halide mixture the principal part by weight of which consists of NaCl and KCl and the balance of which consists of LiF, Na3AlF6, and if desired AlF3, and heating said surface to a temperature at which the Al or Al-base alloy will melt and flow and alloy with the metal of the article.  The Al &c. powder may be composed of pure Al, Al-Si alloy, or Al containing up to 10 per cent of one or more of Cu, Mg and Mn.  The preferred flux consists of 70-88 per cent in the aggregate of KCl and NaCl present in a KCl-NaCl ratio between 1.3:1 and 1:1.2 and 30-12 per cent in the aggregate of LiF, Na3, AlF6, and AlF3, the LiF ranging from 3.5-20 per cent, the Na3AlF6 from 8.5-20 per cent, and the AlF3 from 0-20 per cent of the total.  The composition may be applied to the surface in the form of a suspension as by spraying, brushing or dipping.  The suspension may also contain a suspending agent, a binder, a refractory oxide such as Al2O3, and iron and/or nickel.  When water is the suspension vehicle, a corrosion inhibitor such as ammonium chromate is incorporated in the suspension.  Suitable organic vehicles are kerosene and Stoddard solvent.  The suspending agent may comprise sodium carboxymethylcellulose, sodium algenate, aluminium stearate or aluminium octoate; coumarone-indene type resins may be used as binder.  The article to be coated may be of ferrous metal e.g. mild steel, stainless steel, or a super alloy, and may be heat-treated after aluminizing at a temperature of 1500 DEG 1950 DEG F.  In the preferred method of coating, the article is degreased, cleaned as by light-pickling or light sand-blasting, coated with the aluminizing composition, dried, fired at a temperature of e.g. 1220 DEG -1500 DEG F., air cooled, washed in hot water, and passivated in dilute HNO3. U.S.A.  Specification 1,817,888 is referred to.
Patent GB-552911-A (GB)
Title: Improvements in or relating to wireless aerial systems
IPC: H01Q9/26
Filed: 1941-10-31
Abstract: 552,911. Aerials. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 31, 1941, No. 14068. [Class 40 (v)] An aerial system, having a substantially constant impedance over a frequency range of about 10 per cent of the carrier frequency, comprises two or more adjacent parallel radiators 6, 7, 8, Fig. 2 or 11, 12, Fig. 3, short-circuited at their ends by means, such as metal plates 10, 13, which extend over part of the length of the radiators, so as to connect adjacent similar points in the radiators. The short circuit preferably extends over a distance between 1/20th and 1/5th of the length of a radiator, which may be equal to half the wave-length used. Each short circuit may be a flat metal plate in the plane of the radiators. One radiator may be a flat metal band 13, the width of which is smaller than the distance between the radiators. Transmission lines 9, 14 may be connected as shown.
Patent GB-332967-A (GB)
Title: Improvements in and relating to devices for withdrawing liquids from metallic drums, tins and the like
IPC: B67B7/48
Filed: 1929-05-07
Abstract: 332,967. Howie, A., and Henry, J. M. May 7, 1929. Piston valves. - A valve device for tapping oil etc. drums comprises a hollow stem 1 with a pointed metal-piercing head 2 of triangular, square or other polygonal shape in crosssection and with an internal shoulder 5 constituting a seat for a valve 3 controlled by a spring 10 and operated by a handle 14, the oil etc., issuing from an opening 11. The device is secured to the drum etc. by rotating it after piercing and screwing up a thumb-nut 13 so as to clamp the rim of the hole between the nut and the piercing head. The valve may be retained in open position by providing an elbow slot in the stem within which engages a stud on the valve 3. In an alternative form shown in Fig. 5 the valve casing is screwed on to the hollow stem which is cut short, the valve casing serving as a clamping nut.
Patent GB-163722-A (GB)
Title: Improvements in cranes or the like lifting devices
IPC: B66C23/10
Filed: 1921-05-20
Abstract: 163,722. Cruize, E. May 27, 1920, [Convention date]. Jib crane s.-Comprises special means for luffing jib cranes of the type in which a counterbalanced openwork jib is used which permits the load to pass through the vertical position. In the form illustrated, a two-armed jib 4 is pivoted at 6 to standards and counterweighted at the lower end so as to stand normally in a vertical position. The load is suspended from a swivelling shaft 8, connecting the arms of the jib, and can pass between the arms during luffing. The hoisting rope, which is arranged to compensate for luffing, passes over pulleys 10, 11 at the upper end of the jib, a guide pulley 12 on the lower end of the jib, a pulley 13 on the base-plate, another pulley 14 on the jib, and is secured finally to a winding- drum 15 fixed on the motor shaft. The means for luffing, and securing the jib in any position, comprises two sets of pulleys 16 arranged one behind the other in circles concentric with the pivots 6. A rope 21 passes from a fixed point 18 on the standard round a half circle of the front set of pulleys, and after being looped over the uppermost pulley passes in the reverse direction over the corresponding half circle of the rear set of pulleys, thence passing to, and taking a few turns round, a drum 17. The other end of the rope passes similarly from another fixed point 19 round the other two half circles of the pulleys and from thence to the drum 17. This arrangement gives two loops of rope between the drum and the fixed points, so that by rotating the drum 17 by the motor 22, one loop can be lengthened and the other shortened. Thus the jib can be luffed in either direction, and by applying a brake 20 to the drum, the jib can be fixed at any inclination. The drum 17 is loose on the motor shaft but can be connected thereto by a clutch 23.
Patent GB-259868-A (GB)
Title: Improvements in game apparatus
IPC: A63F7/00
Filed: 1926-06-04
Abstract: 259,868. Delaney, L. T. June 4, 1926. Outdoor games.- Relates to apparatus for playing a game of the kind described in Specification 103,532, wherein balls are rolled along a track and are caused by a hump to rise into the air and enter a target, and consists in mounting the hump rotatably in a gap in the track. The hump may consist of a roller 2 rotated by the friction of the ball or rotated continuously by an electro-motor. Means may be provided for throwing the continuously-rotated roller in and out of gear, operated if desired by the player.
Patent GB-348868-A (GB)
Title: Improvements in control mechanism of internal combustion engines
IPC: F02D9/00
Filed: 1930-05-08
Abstract: 348,868. Regulating. RUBRA, A. A., Red Roofs, Carlton Road, Derby. May 8, 1930, No. 14163. [Classes 7 (iii), 7 (iv), and 7 (vi).] In aircraft engines wherein the throttle valve or ignition is subjected to automatic control by a relay device actuated by the difference in pressure between the inlet and outlet sides of the supercharging - blower, means are provided for substituting atmospheric for blower - outlet pressure when the throttle opening is small. The relay piston i is connected to one end of a floating lever kl, which is connected at its other end to the pilot's control mechanism k<2>, and intermediately by linkage k<3>, k<4> to the throttle valve b. A further connection k<6> leads from the throttle to an arm k<7> on a valve l, which at small throttle openings uncovers an atmospheric port h<8>, and at larger throttle openings uncovers a passage f<1> leading to the outlet side of the blower c. The relay is controlled by a valve j<1> which is connected to an aneroid device g<1> and connects one side of the piston i to the blower inlet, and the other side to the blower outlet or the atmosphere.
Patent GB-984460-A (GB)
Title: Preparation of acrylamide
Inventor: HEINY SUZANNE NASFAY
IPC: C07C233/09
Filed: 1962-04-16
Abstract: Acrylamide is prepared by hydrolysing acrylonitrile is contact with an at least partially dehydrated sulphonic acid cation exchanger in the hydrogen ion form.  The reaction may be conducted at an elevated temperature, e.g., 60-120 DEG  C.  A water-soluble copper salt may be present as a polymerization inhibitor. Specified cation exchangers are sulphonated coal, cross-linked resins obtained by the condensation of phenolmethylene sulphonic acid with aldehydes, cross-linked polymers and copolymers of vinyl sulphonic acid, and cross-linked sulphonated polystyrene. Acrylic acid may be obtained as a by-product.  Examples are given.
Patent GB-976406-A (GB)
Title: Improvements relating to separation processes using molecular sieves
IPC: C10G25/03
Filed: 1962-04-16
Abstract: Straight chain hydrocarbons are separated from petroleum fractions boiling within the C10-C20 range or higher by means of a 5 <\>rA molecular sieve using successive absorption and desorption stages with/without an intervening purge stage wherein the feed stock is first contacted in a pretreatment zone with a 5 <\>rA molecular sieve, the temperature of the pretreatment zone being at least as high as that in the absorption stage of the main separation process and sufficiently high to maintain vapour phase operation in the pretreatment zone.  The pretreatment zone may be operated at 300-450 DEG  C., but preferably 350-390 DEG  C. or the same temperature as the absorption stage and at a pressure of 0-300 p.s.i.g., but preferably 100-150 p.s.i.g., or the same pressure as the absorption stage.  The size of the pretreatment zone may be 1 to 1/1000 , preferably 1/2 to 1/10 of one of the main absorption beds.  The pretreatment zone is said to protect the main absorbent bed, e.g. by absorbing high boiling hydrocarbons, and thus stop rapid deactuation of the main bed.  Two pretreatment zones may be used alternately while the other is being regenerated or a by-pass line may be used round the guard bed whilst it is being regenerated. Specification 944,441 is referred to.ALSO:Straight chain hydrocarbons are separated from petroleum fractions boiling within the C10-C20 range or higher by means of a 5  molecular sieve using successive absorption and desorption stages with/without an intervening purge stage wherein the feed stock is first contacted in a pretreatment zone with a 5 molecular sieve, the temperature of the pretreatment zone being at least as high as that in the absorption stage of the main separation process and sufficiently high to maintain vapour phase operation in the pretreatment zone.  The pretreatment zone may be operated at 300-450  DEG C. but preferably 350-390  DEG C. or the same temperature as the absorption stage and at a pressure of 0-300 p.s.i.g. but preferably 100-150 p.s.i.g. or the same pressure as the absorption stage.  The size of the pretreatment zone may be 1- 1/1000 , preferably 1/2 -\ba1/10 , of one of the main absorption beds.  The pretreatment zone is said to protect the main absorbent bed, e.g. by absorbing high boiling hydrocarbons, and thus stop rapid deactivation of the main bed. Two pretreatment zones may be used alternately while the other is being regenerated or a by-pass line may be used round the guard bed whilst it is being regenerated.  Specification 944,441 is referred to.
Patent GB-313153-A (GB)
Title: Catalytic oxidation of ammonia
IPC: C01B21/26
Filed: 1929-05-10
Abstract: 313,153. Selden Co., (Assignees of Jaeger, A. 0.). June 9, 1928, [Convention date]. Catalytic agents for the oxidation of ammonia to oxides of nitrogen consist of contact masses containing at least one reaction product of a base exchange body with a compound containing an anion capable of reacting therewith to form a salt-like body. The base exchange bodies employed are two component zeolites, multicomponent zeolites or non-siliceous base exchange bodies, and they may be diluted with porous diluents or not. Stabilizers comprising compounds of the alkali, alkaline earth, or basic earth metals may be added and also stabilizer promoters which are general catalysts not specific for the particular reaction. The catalytically active groups in the contact mass are either physically associated with the saltlike body, chemically combined in the base exchange body or present as catalytically active anions in the salt-like body. The contact masses may be used for the oxidation of ammonia containing impurities such as phenols, these being oxidized to harmless substances, and the catalysts may be arranged in zones so that the impurities are selectively oxidized before the ammonia. Metals which may form part of the nucleus of the base exchange body, or which may be substituted therein by base exchange, are mentioned in the Specification. Specifications 279,406 and 286,212 are referred to.